Multiple choice

Find the missing terms in the given series. 15, 12, 9, _, 3, _, _, _

  1. 5, 0, -3, -6

  2. 5, 1, -1, -3

  3. 6, 0, -3, -6

  4. 6, 0, -4, -8

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C Correct answer
Explanation

The series decreases by 3: 15, 12, 9, 6, 3, 0, -3, -6.

AI explanation

The series follows a specific difference logic where the differences between consecutive terms are -3, -3, -3, -3, and so on. Subtracting 3 from 9 gives the first missing term of 6, subtracting 3 from 3 gives 0, subtracting 3 from 0 gives -3, and subtracting 3 from -3 gives -6. Therefore, the missing terms are 6, 0, -3, and -6.